In this paper a xed state feedback control law which minimizes upper bounds on linear-quadratic performance measures for m distinct plants is studied. Previous work 8] by the authors demonstrated a convex semideenite programming solution thereby guaranteeing global optimality. The present work extends that result by proposing an algorithm which reduces the conservatism of the minimum guaranteed...

For many years, the importance of active feedback control of large space structure (LSS) have been widely recognized. This paper presents results on studying the attitude control problem for an LSS typified by the ETSVI (Engineering Test Satellite-VI) spececraft. The attitude control system based on the statefeedback control is proposed. The control law is designed by using the turn over design...

This paper is concerned with the problems of global stabilization and restricted tracking for a multiple oscillator systembybounded feedback. A nonlinear feedback law consisting of nested saturation functions is proposed to achieve global stabilization. To improve the transient performance of the closed-loop system, the parameters in this feedback law can be tuned to assign the poles of the clo...

This paper proposes a framework for optimal control of mechanical systems possessing conserved quantities such as control moment gyros (CMGs). It will be shown that output regulation theory is appropriate to handle such constraints and that the center-stable manifold method for solving the associated Hamilton-Jacobi equation is effective for computing the optimal feedback control. With this fra...

The presented design method aim is to synthesize a state feedback control law in such way that with respect to the prescribed eigenvalues of the closed-loop system matrix the corresponding eigenvectors are as close as possible to a decoupled system eigenvectors. It is demonstrated that some degree of freedom existing in the control design, representing by the parametric vectors set as well as b...

In this paper a novel approach to automatic model-based control is proposed. Process tomography is used as a sensing device in the control system. The feedback control system is designed to regulate the concentration distribution of a substance in a fluid flow in a pipe.

The solution for the above formulated problems are well known (Anderson, Moore, 1990), (Kuo, 1992), but there are some difficulties in implementation of the algorithms. The solution to the P1 problem is usually presented as an open loop control u(k) because the feedback control u(x(k)) has a complicated form. The P2 problem is the most frequently meet linear quadratic problem with finite final ...

One of the main open problems in the area of adaptive control of linear-in-the-parameters feedback linearizable systems is the computation of the feedback control law when the identification model becomes uncontrollable. In this paper, the authors propose a switching adaptive control strategy that overcomes this problem. The proposed strategy is applied to nth-order feedback linearizable system...

The theory of fundamental design limitations is well understood for the case that the performance variable is measured for feedback. In the present paper, we extend the theory to systems for which the performance variable is not measured. We consider only the special case for which the performance and measured outputs and the control and exogenous inputs are all scalar signals. The results of t...

In this note we first characterize the periodic trajectories (or, equivalently, the limit cycles) of a Boolean network, and their global attractiveness. We then investigate under which conditions all the trajectories of a Boolean control network may be forced to converge to the same periodic trajectory. If every trajectory can be driven to such a periodic trajectory, this is possible by means o...